Poly-coated roll header for paper roll and method for wrapping a paper roll using the same

ABSTRACT

There is described a paper roll having an end, the poly-coated roll header comprising: a linerboard base having an inner surface; and a coating of a polypropylene mixed with a low density polyethylene applied to at least a portion of the inner surface of the linerboard base, wherein once applied to the end of the paper roll, the poly-coated roll header protects the end of the paper roll against the elements. There is also described a method for wrapping a paper roll having two ends and a length, the method comprising: installing a coated linerboard, previously coated with a polypropylene mixed with a low density polyethylene, at one of the two ends of the paper roll, thereby providing protection against the elements at the one of the two ends of the paper roll.

BACKGROUND

(a) Field

The subject matter disclosed generally relates to a protective rollheader for rolls to prevent penetration by liquid, such as water, andmore particularly, to a poly-coated protective roll header for paperrolls that provide impermeable roll ends and to a method for wrapping apaper roll using the same.

(b) Related Prior Art

Newsprint and other forms of paper are manufactured and processed aslarge elongated sheets or webs. For storage and transport, the paperstock is wrapped around a core to form a cylindrical roll. The rolls arevery heavy. A typical roll may range from 25 to 72 inches in diameterand, sometimes, as wide as 145 inches or more. To protect the roll frommoisture, the atmosphere, and physical abrasions, the roll itself iswrapped in a moisture proof wrapper for rolls. Typically the rolls arethen stacked one on the other and stored on end. Specialized machinerymust be employed to automatically apply wrapping material or wrappingpapers to the large rolls.

Various methods have previously been used to wrap paper rolls. One ofthe most successful methods has been to first wrap the roll in one ortwo layers of a protective wrapping paper, with the wrapping paperextending outwardly beyond the end of the roll. Next, interior rollheaders (i.e. disks formed of corrugated cardboard, chipboard, coatedchipboards or laminated kraft paper) are fitted inside the wrappingpaper against the ends of the roll. The wrapping paper is then crimpedover the edges of the interior headers at the ends of the rolls using acrimping wheel or any other appropriate technique. A set of exterior oroutside roll headers are then attached to the ends of the roll over thecrimped edges. The headers and the wrapping paper are held in place andaffixed to one another through the use of an adhesive, such as a heatsensitive adhesive (i.e. a polymer coating), on the inside surface ofthe exterior roll header and/or the outward face of the interior rollheader.

The exterior roll headers are affixed to the ends of the rolls in atypical roll wrapping machine by applying heat and/or pressure inaccordance with the properties of the adhesive used.

However, with the technique described above, the wrapping paper is notperfectly sealed at the ends of the rolls, even though the wrappingpaper and the headers, if any, are rendered watertight due to polymericcoatings. The infiltrated liquid flows towards the interior header andthe paper roll, causing damages to the later. Damage typically happensduring roll transportation, transit, and warehousing when environmentalwater (i.e. rail, sleet, snow, water puddles along the route, etc.)enters the trailer or boxcar through defective walls, floors, and doors.Damage may also occur since water found to be on a ground surface maymigrate from the bottom of a paper roller towards the top of the paperroller. Infiltration occurs through the end of the wrapped roll,notwithstanding use of watertight wrapper and headers, because wrappedroll is standing on its end on a floor that is often getting wet duringtransit. Damage to the paper rolls incurs financial burden to thepurchaser, the manufacturer, and/or the transporter.

For these reasons, there is certainly a need to provide an improvedprotective poly-coated header for a paper roll that provide imperviousroll ends and that is less expensive and still very resistant tohumidity and moisture at the ends of the rolls and to provide animproved method for wrapping a paper roll using the same.

SUMMARY

According to an embodiment, there is provided a paper roll having anend, the poly-coated roll header comprising: a linerboard base having aninner surface; and a coating of a polypropylene mixed with a low densitypolyethylene applied to at least a portion of the inner surface of thelinerboard base, wherein once applied to the end of the paper roll, thepoly-coated roll header protects the end of the paper roll against theelements.

According to an embodiment, there is provided a poly-coated roll headerfor a paper roll comprising: a linerboard base having two oppositesurfaces; and a coating of a polypropylene mixed with a low densitypolyethylene applied to at least a portion of at least one of the twoopposite surfaces of the linerboard base.

According to another embodiment, one of the two opposite surfacesdefines an inner surface and the other one of the two opposite surfacesdefines an outer surface and wherein the coating is applied to at leasta portion of the inner surface.

According to another embodiment, the coating is applied to the innersurface.

According to another embodiment, the linerboard base defines a disc-likeshape and the coating defines a disc-like shape.

According to another embodiment, the disc-like shape of the linerboardbase and the disc-like shape of the coating define an equivalentdisc-like shape.

According to another embodiment, the linerboard base is included in thegroup consisting of: any conventional type of flexible paper material, acardboard, a laminated paper, a virgin kraft paper, a recycled paper, acorrugated paper material, or any combination thereof.

According to another embodiment, the thickness of the linerboard base isgreater than the thickness of the coating.

According to another embodiment, the basis weight of the linerboard baseis 8 times greater than the thickness of the coating.

According to another embodiment, the coating comprises from 10% to 30%wt. of polypropylene and from 70% to 90% wt. of low densitypolyethylene.

According to another embodiment, the coating comprises 20% wt. ofpolypropylene and 80% wt. of low density polyethylene.

According to another embodiment, there is provided a protective wrapperfor a paper roll having two ends and a length, the protective wrappercomprising: an inner roll header for covering at least partially atleast one of the two ends of the paper roll; and a layer of papermaterial having a width greater than the length of the paper roll and anedge strip wherein, in use, the edge strip is crimped against at leastone of the two ends of the paper roll thereby defining a crimped edgestrip; and a poly-coated roll header for covering at least partially theinner roll header and the crimped edge strip, the poly-coated rollheader including: a linerboard base having an inner surface; and acoating of a polypropylene mixed with a low density polyethylene appliedto at least a portion of the inner surface of the linerboard base,wherein once applied to the at least one of the two ends of the paperroll, the poly-coated roll header protects the at least one of the twoends of the paper roll against the elements.

According to another embodiment, there is provided a protective wrapperfor a paper roll having two ends and a length, the protective wrappercomprising: an inner roll header, defining an inner surface and an outersurface, for covering at least partially at least one of the two ends ofthe paper roll; and a layer of paper material having a width greaterthan the length of the roll and an edge strip; a poly-coated roll headerfor covering at least partially the inner roll header and the crimpededge strip, the poly-coated roll header including: a linerboard basehaving two opposite surfaces; and a coating of a polypropylene mixedwith a low density polyethylene applied to at least a portion of atleast one of the two opposite surfaces of the linerboard base, therebyproviding protection against the elements at at least one of the twoends of the paper roll; wherein the edge strip for being inwardlycrimped against at least one of the two ends of the paper roll.

According to another embodiment, the basis weight of the linerboard baseis 8 times greater than the basis weight of the coating.

According to another embodiment, the protective wrapper further comprisea layer of heat sensitive material coated to the coating of thepoly-coated roll header, the layer of heat sensitive material having asurface area not exceeding another surface area any one of the two endsof the paper roll.

According to another embodiment, the poly-coated roll header comprisestwo poly-coated roll headers and the inner roll header comprises twoinner roll headers, one of each for each one of the two ends of thepaper roll.

According to another embodiment, the poly-coated roll header coverspartially at least one of the two ends of the paper roll covered by thecrimped edge strip and the inner roll header.

According to another embodiment, the edge strip is inwardly crimpedtowards at least one of the two ends of the paper roll and against atleast one of the two inner roll headers, thereby contributing to thereduction humidity and moisture at at least one of the two ends of thepaper roll.

According to another embodiment, the poly-coated roll header coverstotally at least one of the two ends of the paper roll covered by thecrimped edge strip and the inner roll header.

According to another embodiment, the edge strip comprises two edgestrips, each one of the edge strips partially covering the inner rollheader covering one of the two ends of the paper roll.

According to another embodiment, the poly-coated roll header furthercomprise adhesive properties for being linked with the crimped edgestrip and the inner roll header and wherein the adhesive properties areactivated by heat, infrared, ultraviolet light, ultrasound, pressure,microwaves, radiowaves, X-rays and any combination thereof.

According to another embodiment, there is provided a method for wrappinga paper roll having two ends and a length, the method comprising:installing a coated linerboard, previously coated with a polypropylenemixed with a low density polyethylene, at one of the two ends of thepaper roll, thereby providing protection against the elements at the oneof the two ends of the paper roll.

According to another embodiment, the method further comprises installingan inner roll header at the one of the two ends of the paper roll, priorto the installation of the coated linerboard.

According to another embodiment, the method further comprises wrappingthe paper roll with a layer of paper material having a width greaterthan the length of the paper roll and an edge strip, after installingthe inner roll header and prior to installing the coated linerboard.

According to another embodiment, the method further comprises crimpinginwardly the edge strip against the inner roll header.

According to another embodiment, there is provided a poly-coated rollheader for a paper roll having an end, the poly-coated roll headercomprising: a layer of a corrugated paper material sandwiched betweentwo linerboard bases, the corrugated paper material sandwiched betweentwo linerboard bases having an inner surface; and a water resistantcoating applied to at least a portion of the inner surface of thecorrugated paper material sandwiched between two linerboard bases,wherein once applied to the end of the paper roll, the poly-coated rollheader protects the end of the paper roll against the elements.

According to another embodiment, the linerboard base is included in thegroup consisting of: any conventional type of flexible paper material, acardboard, a laminated paper, a virgin kraft paper, a recycled paper, acorrugated paper material, or any combination thereof.

According to another embodiment, the water resistant coating is includedin the group consisting of: a polypropylene mixed with a low densitypolyethylene, a varnish, a polymeric material or any combinationthereof.

The following terms are defined below.

The term “low density polyethylene (LDPE)” is intended to mean athermoplastic made from petroleum. LDPE is defined by a density range of0.910-0.940 g/cm³. LDPE is not reactive at room temperatures, except bystrong oxidizing agents, and some solvents cause swelling. LDPE canwithstand temperatures of 80° C. continuously and 95° C. for a shorttime. Made in translucent or opaque variations, it is quite flexible,and tough but breakable. LDPE has more branching, i.e. on about 2% ofthe carbon atoms, than high density polyethylene (HDPE), so itsintermolecular forces are weaker, its tensile strength is lower, and itsresilience is higher. Also, since its molecules are less tightly packedand less crystalline because of the side branches, its density is lower.The melting point for average, commercial, low-density polyethylene istypically 105 to 115° C. (221 to 239° F.).

The term “polypropylene” is intended to mean a thermoplastic which isdefined by a density range of 0.855-0.946 g/cm³. Its melting pointreaches 130-171° C. Polypropylene is isotactic and has an intermediatelevel of crystallinity between that of low-density polyethylene (LDPE)and high-density polyethylene (HDPE). Polypropylene is normally toughand flexible, especially when copolymerized with ethylene. Polypropylenecan be made translucent when uncolored but is not as readily madetransparent as polystyrene, acrylic, or certain other plastics.Polypropylene is often opaque or colored using pigments. Polypropylenehas good resistance to fatigue.

Features and advantages of the subject matter hereof will become moreapparent in light of the following detailed description of selectedembodiments, as illustrated in the accompanying figures. As will berealized, the subject matter disclosed and claimed is capable ofmodifications in various respects, all without departing from the scopeof the claims. Accordingly, the drawings and the description are to beregarded as illustrative in nature, and not as restrictive and the fullscope of the subject matter is set forth in the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Further features and advantages of the present disclosure will becomeapparent from the following detailed description, taken in combinationwith the appended drawings, in which:

FIG. 1 is a perspective view of a paper roll being wrapped in accordancewith an embodiment;

FIG. 2 is a perspective view, fragmented, of one end of the paper rollof FIG. 1;

FIG. 3A is a cross-sectional view of a poly-coated roll header for apaper roll in accordance with another embodiment;

FIG. 3B is a cross-sectional view of a poly-coated roll header for apaper roll in accordance with another embodiment;

FIG. 3C is a cross-sectional view of a poly-coated roll header for apaper roll in accordance with another embodiment;

FIG. 4 is perspective exploded view of the paper roll to be wrapped in alayer of a paper material and where a poly-coated roll header and aninner roll header are juxtaposed to one end of the paper roll inaccordance with another embodiment; and

FIG. 5 illustrates a method for wrapping a paper roll with a poly-coatedroll header in accordance with another embodiment.

It will be noted that throughout the appended drawings, like featuresare identified by like reference numerals.

DETAILED DESCRIPTION

In embodiments there are disclosed a poly-coated roll header forprotecting paper rolls to prevent penetration of liquids, such as water,and more particularly, a protective wrapper and a method for wrapping apaper roll using the poly-coated roll header.

Referring now to the drawings, and more particularly to FIGS. 1 and 2,there is shown a perspective view of a paper roll 30 and of an end 18 aof a paper roll 30. For example, a conventional paper roll 30 has alongitudinal roll axis 32, a pair of longitudinally spaced-apart ends 18a, 18 b, and an outer roll surface 34 extending between the ends 18 a,18 b and radially spaced along the longitudinal roll axis 32. The paperroll 30 is characterized by a length L₁ along the longitudinal roll axis32.

The paper roll 30 is wrapped with a protective wrapper 16 having a widthW₁, longer than the length L₁ or equal to the length L₁, in a mannersuch that the edge strips 22 a, 22 b of the layer of protective material20 of the protective wrapper 16 extend outwardly beyond the ends 18 a,18 b, or such that the edge strips 22 a, 22 b of the protective wrapper16 do not extend outwardly beyond the ends 18 a, 18 b. In general, theedge strips 22 a, 22 b of the protective wrapper 16 typically extendbetween 3 to 10 inches and, preferably, between 4 to 9 inches, beyondthe ends 18 a, 18 b but that they can be wider or narrower.

It is to be noted that the edge strips 22 a, 22 b of the protectivewrapper 16 are not necessary straight edges, the edge strips 22 a, 22 bof the protective wrapper 16 may be shaped edges.

According to an embodiment an still referring to FIGS. 3A and 3B, thereis shown cross-sectional view of a poly-coated roll header 10 for apaper roll 30. The poly-coated roll header 10 includes a linerboard base12 having two opposite surfaces 36, 38. The poly-coated roll header 10also includes a coating 14 of a polypropylene mixed with a low densitypolyethylene applied to at least a portion of at least one of the twoopposite surfaces 36, 38 of the linerboard base 12. FIG. 3A shows bothsurfaces 36, 38 of the linerboard base 12 coated with the coating 14 andFIG. 3B shows only one of the two surface 36, 38 of the linerboard base12 coated with the coating 14. Still referring to FIG. 3B, it is to benoted that the coating 14 may also represent a layer of LDPE coated tothe linerboard base 12 and underneath a layer of PP coated to the layerof LDPE. Inversely, it is to be noted that the coating 14 may alsorepresent a layer of PP coated to the linerboard base 12 and underneatha layer of LDPE coated to the layer of PP.

According to another embodiment and referring now to FIG. 3C, there isshown a cross-sectional view of a poly-coated roll header 200 for apaper roll 30. The poly-coated roll header 200 includes a layer of acorrugated paper material 212 sandwiched between two linerboard bases210. The layer of corrugated paper material 212 sandwiched between twolinerboard bases 210 has an inner surface 216. The poly-coated rollheader 200 also includes a water resistant coating 214 applied to atleast a portion of the inner surface 216 of the layer of corrugatedpaper material 212 sandwiched between two linerboard bases 210. Onceapplied to the end 18 a or 18 b of the paper roll 30, the poly-coatedroll header 200 protects the end 18 a or 18 b of the paper roll 30against the elements. At least one of the liner board the linerboardbases 210 may be included in the group consisting of, withoutlimitations, any conventional type of flexible paper material, acardboard, a laminated paper, a virgin kraft paper, a recycled paper, acorrugated paper material, any combinations, and the like. The waterresistant coating 214 may be included in the group consisting of,without limitations, a polypropylene mixed with a low densitypolyethylene, a varnish, a polymeric material, any combination, and thelike.

According to another embodiment, one of the two opposite surfaces 36, 38defines an inner surface 36 and the other one of the two oppositesurfaces 36, 38 defines an outer surface 38. The coating 14 may beapplied to at least a portion of the inner surface 36. The coating 14may also be applied to the entire inner surface 36.

According to another embodiment, the linerboard base 12 may define adisc-like shape and the coating 14 may define a disc-like shape. Thedisc-like shape of the linerboard base 12 and the disc-like shape of thecoating 14 may define an equivalent disc-like shape.

According to another embodiment, the linerboard base 12 may be includedin the group consisting of, without limitations, any conventional typeof flexible paper material, a cardboard, a laminated paper, a virginkraft paper, a recycled paper, a corrugated paper material and the like.

According to another embodiment, the thickness of the linerboard base 12is greater than the thickness of the coating 14. On the other hand, thebasis weight of the linerboard base 12 may be 8 times greater than thebasis weight of the coating 14. For example, the basis weight of thepolypropylene may be 15 lbs/3000 square foot when the basis weight ofthe low density polyethylene may be 126 lbs/3000 square foot.

According to another embodiment, the coating 14 may comprise from 1% to50% wt. of polypropylene and from 50% to 99% wt. of low densitypolyethylene. More particularly, the coating 14 may comprise 50% wt. ofpolypropylene and 50% wt. of low density polyethylene. According toanother embodiment, the poly-coated roll header 10 may further include alayer of heat sensitive material. The layer of heat sensitive materialmay have a surface area not exceeding another surface area of the ends18 a, 18 b of the paper roll 30.

According to another embodiment and referring now to FIG. 4, there isshown an exploded view of a protective wrapper 16 for a paper roll 30having two ends 18 a, 18 b and a length L₁. The protective wrapper 16includes a layer of paper material 20 having a width W₁ greater than thelength L₁ of the paper roll 30 and an edge strip 22 a, 22 b. Theprotective wrapper 16 also includes an inner roll header 15 a, definingan inner surface 17 and an outer surface 18. The inner roll header 15 a,15 b is for covering at least partially at least one of the two ends 18a, 18 b of the paper roll 30. The edge strips 22 a, 22 b are for beinginwardly crimped against at least one of the two ends 18 a, 18 b of thepaper roll 30. The protective wrapper 16 also includes a poly-coatedroll header 10 covering at least partially the inner roll header 15 aand the crimped edge strip 28. The poly-coated roll header 10, therebycontributing for the reduction of humidity and moisture and protectingagainst the elements at at least one of the two ends 18 a, 18 b of thepaper roll 30. It is to be noted that the poly-coated header as definedabove may be utilized in wrapping a paper roll 30 as an inner rollheader 15 a and/or 15 b and/or as an outer roll header 10.

According to another embodiment, there is provided a method 100 forwrapping a paper roll having two ends and a length. The method comprisesthe step 102 of applying a coating of a polypropylene mixed with a lowdensity polyethylene to at least a portion of at least one of twoopposite surfaces of a linerboard base and the step 110 of installingthe coated linerboard at at least one of the two ends of the paper roll,thereby contributing to the reduction humidity and moisture andprotecting against the elements at at least one of the two ends of thepaper roll.

According to another embodiment, the method may further comprise thestep 104 of installing an inner roll header at at least one of the twoends of the paper roll, prior to the installation of the coatedlinerboard at the at least one of the two ends of the paper roll.

According to another embodiment, the method may further comprise thestep 106 of wrapping the paper roll with a layer of paper materialhaving a width greater than the length of the roll and an edge strip,after installing the inner roll header and prior to installing thecoated linerboard.

According to another embodiment, the method may further comprise thestep 108 of crimping inwardly the edge strip against the inner rollheader.

According to an embodiment, the edge strips 22 a, 22 b may be crimpedusing a crimping wheel which hammers the edge strips 22 a, 22 b onto theinner roll header 15 a, 15 b covering the ends 18 a, 18 b of the paperroll 30. It will be appreciate that any other suitable technique can beused to crimp the extending edge strips 22 a, 22 b. Each of these edgestrips 22 a, 22 b of the protective wrapper 16 may overlap onto itselfon the inner roll headers 19 a, 19 b and over the ends 18 a, 18 b duringthe crimping procedure.

The layer of heat sensitive material 26 may be made of, withoutlimitations, EMA, EVA, polyurethane, polyethylene, polypropylene, highdensity polyethylene, and any other suitable heat sensitive material.The layer of heat sensitive material 26 can also be a multilayeredmaterial such as EMA/polyethylene, EVA/polyethylene, polyethylene/highdensity polyethylene, and the like.

For protecting the paper roll 30 from external moisture, the atmosphere,and physical abrasions, the layer of paper material 20 can have moistureproof properties along its width W₁. The heat sensitive material can beselected to provide the moisture proof properties to the layer of papermaterial.

Referring now to FIG. 2, it will be seen that once the paper roll 30 iswrapped in the protective wrapper 16, the edge strips 22 a, 22 b arecrimped over inner roll header 15 a, juxtaposed to the end 18 a.

As for the previously described embodiments, when crimped toward theinner roll header 15 a, the edge strips 22 a of the protective wrapper16 are in paper to adhesive contact with the poly-coated roll header 10,thereby providing improved barrier properties. The face of thepoly-coated roll headers 10, juxtaposed to the edge strips 22 a, 22 band to the inner roll header 15 may include some adhesive properties forproviding improved barrier properties.

As mentioned above, the adhesive material of the poly-coated rollheaders 10 can be an activated adhesive such as a heat activatedadhesive. The adhesive properties of the poly-coated roll headers 10 canbe activated by any suitable technique. For example, it can be activatedby heat, infrared, ultraviolet light, ultrasound, pressure, microwaves,radiowaves, X-rays and any other suitable source to activate adhesives.As mentioned above, the poly-coated roll headers 10 can be coated on oneside, or on both sides, with an adhesive such as polyethylene, whichbonds the poly-coated roll headers 10 to the protective wrapper 16, in apaper material to adhesive contact.

The ends 18 a, 18 b, along the lengths of the wrapped paper rolls 30obtained with the protective wrapper 16 described above is watertight.This prevents liquid infiltration along the crimps.

The paper roll 30 can be any type of rolled paper including coatedprinting paper. However, it will appreciate that the above describedprotective wrapper 16 can be applied to any rolled material that needsto be wrapped and protected from liquids and/or moisture infiltration.

The protective wrapper 16 can be manufactured on existing roll wrapextruders, laminators, and coater-laminators and can be applied to thepaper roll 30 with existing roll wrapping equipment.

It will be appreciate that the paper roll 30 can be wrapped one turn ormore by the layer of paper material 20, depending upon the physicalproperties of the layer of paper material 20.

The embodiments described above are intended to be exemplary only.Several alternatives are possible. For example, it is possible to wrapthe paper roll 30 without using one of both poly-coated roll headers 10.The protective wrapper 16 could be used to protect various moisturesensitive articles not only paper rolls.

While preferred embodiments have been described above and illustrated inthe accompanying drawings, it will be evident to those skilled in theart that modifications may be made without departing from thisdisclosure. Such modifications are considered as possible variantscomprised in the scope of the disclosure.

1. A poly-coated roll header for a paper roll having an end, thepoly-coated roll header comprising: a linerboard base having an innersurface; and a coating of a polypropylene mixed with a low densitypolyethylene applied to at least a portion of the inner surface of thelinerboard base, wherein once applied to the end of the paper roll, thepoly-coated roll header protects the end of the paper roll against theelements.
 2. The poly-coated roll header of claim 1, wherein thelinerboard base defines a disc-like shape and the coating defines adisc-like shape.
 3. The poly-coated roll header of claim 2, wherein thedisc-like shape of the linerboard base and the disc-like shape of thecoating defines an equivalent disc-like shape.
 4. The poly-coated rollheader of claim 1, wherein the linerboard base is included in the groupconsisting of: any conventional type of flexible paper material, acardboard, a laminated paper, a virgin kraft paper, a recycled paper, acorrugated paper material or any combination thereof.
 5. The poly-coatedroll header of claim 1, wherein the thickness of the linerboard base isgreater than the thickness of the coating.
 6. The poly-coated rollheader of claim 1, wherein the basis weight of the linerboard base is 8times greater than the basis weight of the coating.
 7. The poly-coatedroll header of claim 1, wherein the coating comprises from 10% to 30%wt. of polypropylene and from 70% to 90% wt. of low densitypolyethylene.
 8. The poly-coated roll header of claim 7, wherein thecoating comprises 20% wt. of polypropylene and 80% wt. of low densitypolyethylene.
 9. A protective wrapper for a paper roll having two endsand a length, the protective wrapper comprising: an inner roll headerfor covering at least partially at least one of the two ends of thepaper roll; and a layer of paper material having a width greater thanthe length of the paper roll and an edge strip wherein, in use, the edgestrip is crimped against at least one of the two ends of the paper rollthereby defining a crimped edge strip; and a poly-coated roll header forcovering at least partially the inner roll header and the crimped edgestrip, the poly-coated roll header including: a linerboard base havingan inner surface; and a coating of a polypropylene mixed with a lowdensity polyethylene applied to at least a portion of the inner surfaceof the linerboard base, wherein once applied to the at least one of thetwo ends of the paper roll, the poly-coated roll header protects the atleast one of the two ends of the paper roll against the elements. 10.The protective wrapper of claim 9, wherein the linerboard base isincluded in the group consisting of: any conventional type of flexiblepaper material, a cardboard, a laminated paper, a virgin kraft paper, arecycled paper, a corrugated paper material, or any combination thereof.11. The protective wrapper of claim 9, wherein the basis weight of thelinerboard base is 8 times greater than the basis weight of the coating.12. The protective wrapper of claim 9, wherein the coating comprisesfrom 10% to 30% wt. of polypropylene and from 70% to 90%% wt. of lowdensity polyethylene.
 13. The protective wrapper of claim 12, whereinthe coating comprises 20% wt. of polypropylene and 80% wt. of lowdensity polyethylene.
 14. The protective wrapper of claim 9, furthercomprising a layer of heat sensitive material coated to the coating ofthe poly-coated roll header, the layer of heat sensitive material havinga surface area not exceeding another surface area of any one of the twoends of the paper roll.
 15. The protective wrapper of claim 9, whereinthe poly-coated roll header comprises two poly-coated roll headers andthe inner roll header comprises two inner roll headers, one of each foreach one of the two ends of the paper roll.
 16. The protective wrapperof claim 9, wherein the poly-coated roll header further compriseadhesive properties for being linked with the crimped edge strip and theinner roll header and wherein the adhesive properties are activated byheat, infrared, ultraviolet light, ultrasound, pressure, microwaves,radiowaves, X-rays and any combination thereof.
 17. A method forwrapping a paper roll having two ends and a length, the methodcomprising: installing a coated linerboard, previously coated with apolypropylene mixed with a low density polyethylene, at one of the twoends of the paper roll, thereby providing protection against theelements at the one of the two ends of the paper roll.
 18. The method ofclaim 17, further comprising installing an inner roll header at the oneof the two ends of the paper roll, prior to the installing of the coatedlinerboard.
 19. The method of claim 18, further comprising wrapping thepaper roll with a layer of paper material having a width greater thanthe length of the paper roll and an edge strip, after installing theinner roll header and prior to installing the coated linerboard.
 20. Themethod of claim 19, further comprising crimping inwardly the edge stripagainst the inner roll header.
 21. A poly-coated roll header for a paperroll having an end, the poly-coated roll header comprising: a layer of acorrugated paper material sandwiched between two linerboard bases, thecorrugated paper material sandwiched between two linerboard bases havingan inner surface; and a coating applied to at least a portion of theinner surface of the corrugated paper material sandwiched between twolinerboard bases, wherein once applied to the end of the paper roll, thepoly-coated roll header protects the end of the paper roll against theelements; wherein the water resistant coating is included in the groupconsisting of: a polypropylene mixed with a low density polyethylene, avarnish, a polymeric material or any combination thereof.
 22. Thepoly-coated roll header of claim 21, wherein the linerboard base isincluded in the group consisting of: any conventional type of flexiblepaper material, a cardboard, a laminated paper, a virgin kraft paper, arecycled paper, a corrugated paper material or any combination thereof.23. (canceled)